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HelpTest Code CYSR Cystinuria Profile, Quantitative, Random, Urine
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineNecessary Information
1. Patient's age is required.
2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Specimen Volume: 2 mL
Collection Instructions: Collect a random urine specimen.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 70 days |
| Refrigerated | 14 days |
Reference Values
|
Amino Acid |
Age groups |
|||||
|
<2 months |
2-35 months |
3-6 years |
7-17 years |
≥18 years |
||
|
Arginine |
Arg |
<250 |
<147 |
<81 |
<42 |
<65 |
|
Ornithine |
Orn |
<344 |
<238 |
<228 |
<291 |
<193 |
|
Cystine |
Cys |
<486 |
<285 |
<111 |
<84 |
<142 |
|
Lysine |
Lys |
<2217 |
<1321 |
<814 |
<463 |
<295 |
All results reported as nmol/mg creatinine.
Day(s) Performed
Monday through Friday
CPT Code Information
82136
Genetics Test Information
This test provides biochemical diagnosis of cystinuria. It measures cystine, lysine, ornithine, and arginine.